VizieR

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VizieR

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VII/250/2dfgrs The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
Best observations of 2dFGRS (low-quality redshifts are written in red) (245591 rows)
  SeqNum=274290
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200010 15 53.1900 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-00 46 10.600 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195010 13 19.7705 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-00 31 12.689 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon243.2337293 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+43.3582875 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
170553recno 170553  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqNum274290  (i) 2dFGRS serial number (SEQNUM) (meta.id)
o_SeqNum2   [1,6] Number of spectra obtained (meta.number)
NameTGN356Z157  (i) 2dFGRS name (NAME) (meta.id;meta.main)
UKST854  UKST plate number (IFIELD) (obs.field)
RAJ200010 15 53.19 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-00 46 10.6 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
Bjmag17.081 mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
Bjsel16.894 mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
Bjmag.o17.480 mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
Bjsel.o17.360 mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)
Gext 0.187 mag Galactic extinction value (GALEXT) (phys.absorption)
Bjmag.S17.125 mag SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
Rmag.S16.349 mag SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
ObsRun00APR  Observation run of best spectrum (OBSRUN) (obs.param;obs)
z.obs 0.0442   Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
z 0.0441   Best redshift (heliocentric) (Z_HELIO) (Note 2)   (src.redshift)
q_z4   [1,5] Redshift quality for best spectrum (reliable redshifts have quality≥3) (Note 2)   (meta.code.qual;src.redshift)
n_z2  Redshift type (abs=1, emi=2, man=3) (ABEMMA) (meta.note)
z.abs 0.0446   Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
T3  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
Rx 6.64   Cross-correlation R value (R_CRCOR) (Note 2)   (stat.fit.param)
z.em 0.0442   Emission redshift (Z_EMI) (Note 2)   (src.redshift;pos.heliocentric)
o_z.em3  Number of emission lines for Z_EMI (NMBEST) (Note 2)   (meta.number)
SNR 15.3  Median signal to noise ratio per pixel (Note 2)   (em.wl.central;stat.median)
eta 1.6296   Eta spectral type parameter from best spectrum (ETA_TYPE) (Note G1)   (stat.fit.param)

SpSp  Show the Image and annotated Spectrum of this 2dF Object (meta.ref.url)
  
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